Home / 13,433.37-20,153.48-7,891.41

Finding the Fourth Proportional to 13,433.37, 20,153.48 and 7,891.41

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Solution

The fourth proportional to 13,433.37, 20,153.48 and 7,891.41 is: 11,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.37 : 20,153.48 = 7,891.41 : x
  2. Step 2: Convert to fraction form
    13,433.37/20,153.48 = 7,891.41/x
  3. Step 3: Cross multiply
    13,433.37x = 20,153.48 × 7,891.41
  4. Step 4: Simplify right side
    13,433.37x = 159,039,334.15
  5. Step 5: Solve for x
    x = 159,039,334.15/13,433.37
  6. Step 6: Final answer
    x = 11,839.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.